Patents Assigned to Diolen Industrial Fibers B.V.
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Patent number: 8182915Abstract: A method is provided for spinning a multifilament thread from a thermoplastic material, including the steps of extruding the melted material through a spinneret with a plurality of spinneret holes into a filament bundle with a plurality of filaments, winding the filaments as thread after solidifying, and cooling the filament bundle beneath the spinneret, whereby in a first cooling zone the gaseous cooling medium is directed in such a way that it flows through the filament bundle transversely, the cooling medium leaving the filament bundle practically completely on the side opposite the inflow side, and in a second cooling zone beneath the first cooling zone, the filament bundle being cooled further essentially through self-suction of the gaseous cooling medium surrounding the filament bundle.Type: GrantFiled: March 26, 2010Date of Patent: May 22, 2012Assignee: Diolen Industrial Fibers B.V.Inventors: Hendrik Middeljans, Eric Heuveling, Bastiaan Krins, Johannes Frederick Boer
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Patent number: 7842208Abstract: A method for spinning a multifilament yarn from a thermoplastic material, where the filament bundle is cooled below the spinneret in a first cooling zone, first of all by means of at least one transverse blowing operation with a gaseous cooling medium and by means of an extraction means for the gaseous cooling medium which lies opposite said transverse blowing means, and subsequently the filament bundle is cooled further in a second cooling zone below the first cooling zone by automatic suction of gaseous cooling medium which is situated in the vicinity of the filament bundle.Type: GrantFiled: July 16, 2008Date of Patent: November 30, 2010Assignee: Diolen Industrial Fibers B.V.Inventors: Bastiaan Krins, Johannes Frederik Boer
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Publication number: 20100269478Abstract: A method for spinning a multifilament yarn from a thermoplastic material, where the filament bundle is cooled below the spinneret in a first cooling zone, first of all by means of at least one transverse blowing operation with a gaseous cooling medium and by means of an extraction means for the gaseous cooling medium which lies opposite said transverse blowing means, and subsequently the filament bundle is cooled further in a second cooling zone below the first cooling zone by automatic suction of gaseous cooling medium which is situated in the vicinity of the filament bundle.Type: ApplicationFiled: July 8, 2010Publication date: October 28, 2010Applicant: DIOLEN INDUSTRIAL FIBERS B.V.Inventors: Bastiaan Krins, Johannes Frederik Boer
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Publication number: 20100175361Abstract: A method is provided for spinning a multifilament thread from a thermoplastic material, including the steps of extruding the melted material through a spinneret with a plurality of spinneret holes into a filament bundle with a plurality of filaments, winding the filaments as thread after solidifying, and cooling the filament bundle beneath the spinneret, whereby in a first cooling zone the gaseous cooling medium is directed in such a way that it flows through the filament bundle transversely, the cooling medium leaving the filament bundle practically completely on the side opposite the inflow side, and in a second cooling zone beneath the first cooling zone, the filament bundle being cooled further essentially through self-suction of the gaseous cooling medium surrounding the filament bundle.Type: ApplicationFiled: March 26, 2010Publication date: July 15, 2010Applicant: DIOLEN INDUSTRIAL FIBERS B.V.Inventors: Hendrik MIDDELJANS, Eric HEUVELING, Bastiaan KRINS, Johannes Frederik BOER
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Patent number: 7731876Abstract: A method is provided for spinning a multifilament thread from a thermoplastic material, including the steps of extruding the melted material through a spinneret with a plurality of spinneret holes into a filament bundle with a plurality of filaments, winding the filaments as thread after solidifying, and cooling the filament bundle beneath the spinneret, whereby in a first cooling zone the gaseous cooling medium is directed in such a way that it flows through the filament bundle transversely, the cooling medium leaving the filament bundle practically completely on the side opposite the inflow side, and in a second cooling zone beneath the first cooling zone, the filament bundle being cooled further essentially through self-suction of the gaseous cooling medium surrounding the filament bundle.Type: GrantFiled: June 26, 2003Date of Patent: June 8, 2010Assignee: Diolen Industrial Fibers B.V.Inventors: Hendrik Middeljans, Eric Heuveling, Bastiaan Krins, Johannes Frederik Boer
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Publication number: 20080213561Abstract: The present invention relates to a process for producing a polyphenylene sulfide multifilament yarn, a polyphenylene sulfide multifilament yarn and the use of a polyphenylene sulfide multifilament yarn. The process for producing a polyphenylene sulfide multifilament yarn is characterized in that only after time period between 0.1 sec and 0.3 sec after leaving the spinneret the filaments of the spun yarn are subjected to an active cooling stage. The Polyphenylene sulfide multifilament yarn having a filament linear density of 5 dtex to 30 dtex, an overall linear density of 500 dtex to 2500 dtex, a breaking tenacity in the range of 50 cN/tex to 80 cN/tex and an elongation at break of 8% to 16% for a yarn with a breaking tenacity in the range of 60 cN/tex to 80 cN/tex and an elongation at break of 16% to 30% for a yarn with a breaking tenacity in the range of 50 cN/tex to 60 cN/tex.Type: ApplicationFiled: March 14, 2006Publication date: September 4, 2008Applicant: DIOLEN INDUSTRIAL FIBERS B.V.Inventors: Bastiaan Krins, Henricus H.W. Feijen, Peter Heuzeveldt, Christian Vieth, Rudolf Elbert
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Publication number: 20070196651Abstract: A method for coating yarn is proposed, including steps in which the yarn is first placed in contact with a dispersion of the coating agent in a dispersing agent or with the coating agent in melted form, optionally excess dispersion or melt is scraped back off the yarn, and then the coating is formed on the yarn, where in the case of the dispersion this occurs by means of at least partially removing the dispersing agent by heating, and the yarn thus coated is then cooled down and wound, which is distinguished by the fact that the coated yarn undergoes additional cooling before winding.Type: ApplicationFiled: March 12, 2005Publication date: August 23, 2007Applicant: DIOLEN INDUSTRIAL FIBERS B.V.Inventors: Freddy Tijink, Henricus Feijen, Ronald Stiefelhagen, Christian Vieth, Johannes Dortmans
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Publication number: 20050147814Abstract: A method is provided for spinning a multifilament thread from a thermoplastic material, comprising the steps of extruding the melted material through a spinneret with a plurality of spinneret holes into a filament bundle with a plurality of filaments, winding the filaments as thread after solidifying, and cooling the filament bundle in two steps beneath the spinneret, whereby in a first cooling zone the gaseous cooling medium is directed in such a way that it flows through the filament bundle transversely the method being characterized in that the cooling medium leaves the filament bundle practically completely on the side opposite the inflow side, and in a second cooling zone beneath the first cooling zone the filament bundle being cooled further essentially through self-suction of the gaseous cooling medium surrounding the filament bundle.Type: ApplicationFiled: June 26, 2003Publication date: July 7, 2005Applicant: DIOLEN INDUSTRIAL FIBERS B.V.Inventors: Hendrik Middeljans, Eric Heuveling, Bastiaan Krins, Johannes Boer
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Patent number: 6881480Abstract: A process for manufacturing continuous polyester filament yarn for technical applications from a polymer over 90% of the chains of which are composed of ethylene terephthalate units, via a one-step spinning process, with the undrawn filaments having a crystallinity smaller than 16% and the yarn being wound at a rate larger than 6000 m/min. The yarn obtained in this fashion is particularly suitable for use as reinforcing material in rubber articles, notably as reinforcing material in pneumatic tires for cars. The polyester filament yarn can be used to make cords of uncommonly high dimensional stability and a unique combination of breaking tenacity, shrinkage, and breaking toughness.Type: GrantFiled: December 7, 2001Date of Patent: April 19, 2005Assignee: Diolen Industrial Fibers B.V.Inventors: Hendrikus Wilhelmus Jacobus Hofs, Heinrich Johannes Gustav Kiefer, Henricus Hubertus Wilhelmus Feijen, Lambert van Duren, Christiaan Jurriaan Maria van den Heuvel, Michael Henricus Jacobus van den Tweel